Simultaneous attainment of light-weight, high-efficiency, and low noise: By the supermultijet-twister engine working from startup to hypersonic scram mode

Ken Naitoh, Mikiya Marui, Kouichi Ishida, Yoshitaka Sagara, Taro Tamura, Dai Shimizu, Shouhei Nonaka, Tomoaki Kubota, Taiki Hashimoto, Yoshiyuki Nojima, Masato Tanaka

Research output: Contribution to conferencePaper

14 Citations (Scopus)

Abstract

A single lightweight engine capable of operating over a wide range of Mach numbers from startup to the hypersonic regime, which was proposed for aircars, aircrafts, and spaceships (Naitoh et al, 2010, 2011, 2012), has an impressive potential of low noise and high thermal efficiency. Its new compression principle is based on super multijets colliding with pulsation. Shocktube experiments and computational fluid dynamics with a chemical reaction model at about M=1 clarified the efficiency and stability of this engine system. In this report, computations for this engine system extended with a special twister piston show reduction of thermal loss and noise, even for low subsonic Mach number M< 0.3. Then, the present engine has a good affinity with ram-scram system, because the present engine does not include turbofan system at the engine center. Thus, we will also show computational results for M>2. We also confirmed combustion occurrence by performing primitive testes for two prototype engines.

Original languageEnglish
Publication statusPublished - 2013 Sep 11
Event44th AIAA Thermophysics Conference - San Diego, CA, United States
Duration: 2013 Jun 242013 Jun 27

Conference

Conference44th AIAA Thermophysics Conference
CountryUnited States
CitySan Diego, CA
Period13/6/2413/6/27

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ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

Cite this

Naitoh, K., Marui, M., Ishida, K., Sagara, Y., Tamura, T., Shimizu, D., Nonaka, S., Kubota, T., Hashimoto, T., Nojima, Y., & Tanaka, M. (2013). Simultaneous attainment of light-weight, high-efficiency, and low noise: By the supermultijet-twister engine working from startup to hypersonic scram mode. Paper presented at 44th AIAA Thermophysics Conference, San Diego, CA, United States.